The term "24/7" which means "twenty-four by seven" has now become popular. There is another option - "24/7/365".
Also, modern people use the phrase "to talk 24/7". What is the meaning of these expressions?
Hours and week
It is easy for anyone to guess that the number 24 means the number of hours in a day, and 7 means the days of the week.
Meaning that some action or event occurs around the clock during the week. This is how it is customary to describe the work of a modern support service on any selling site.
That is, the work of the service departments is carried out constantly, continuously. For example, call center employees can talk 24/7, which means they are ready to serve their customers around the clock.
Unfortunately, this is not always true - overnight customer service and support is often heralded by companies, but not always implemented.
Year-round
For example, providershosting practices round-the-clock maintenance of clients, there is a term: "24/7/365". This means year-round work of consultants, which is carried out even without national holidays and weekends.
Previously, such a service system was used only in the work of emergency response services (fire, ambulance, emergency services). Now it is especially popular in the business environment of the Internet.
So now you won't be surprised to see on any site an ad like: "We are with you 24/7", which means all week, around the clock.
About talkers and loafers
The expression "24/7" has migrated from online business and rescue services to the simple colloquial speech of ordinary citizens. For example, "she makes him scandals 24/7", which means: a woman swears with her man around the clock and all week. Of course, the meaning in this case is exaggerated, but it conveys the grumpiness and harmfulness of the character of a certain person.
Examples of expressions. "Chats 24/7", which means: likes to talk a lot. A "24/7 slacker" is a very lazy person who does nothing most of the time.